html,
body,
h3,
ul {
    margin: 0;
    padding: 0;
    height: 100%;
    list-style: none;
}

.box {
    width: 249px;
    height: 260px;
    padding: 10px;
    border: 1px solid gray;
    margin: 0 auto;

    .nav-header {
        font-size: 15px;
    }

    .content {
        ul {
            margin-top: 10px;

            li {
                margin-bottom: 5px;
                border-bottom: 1px dashed #000;

                a {
                    font-size: 14px;
                    text-decoration: none;
                    color: #000;

                    &:hover {
                        color: red;
                    }
                }
            }
        }
    }
}